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Finding the Fourth Proportional to 655,282.71, 904,319.24 and 368,821.35

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Solution

The fourth proportional to 655,282.71, 904,319.24 and 368,821.35 is: 508,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,282.71 : 904,319.24 = 368,821.35 : x
  2. Step 2: Convert to fraction form
    655,282.71/904,319.24 = 368,821.35/x
  3. Step 3: Cross multiply
    655,282.71x = 904,319.24 × 368,821.35
  4. Step 4: Simplify right side
    655,282.71x = 333,532,241,083.67
  5. Step 5: Solve for x
    x = 333,532,241,083.67/655,282.71
  6. Step 6: Final answer
    x = 508,989.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.